U.S. patent number 5,326,084 [Application Number 08/005,262] was granted by the patent office on 1994-07-05 for one piece bearing unit sleeve for suspension member.
This patent grant is currently assigned to Dr. Ing. h.c.F. Porsche AG. Invention is credited to Peter Mevissen, Hans-Jurgen Wohler.
United States Patent |
5,326,084 |
Mevissen , et al. |
July 5, 1994 |
One piece bearing unit sleeve for suspension member
Abstract
A vibration damper for a wheel of a motor vehicle has a bearing
unit for a suspension part of a stabilizer which is held on the
spring strut. The bearing unit includes a holding element which
extends around the cylinder of the spring strut and is connected
with it. The holding element has a bearing for the suspension part
in a projecting console and has a face that forms a spring plate.
The face supports a coil spring which is arranged coaxially with
respect to the spring strut. This coil spring is supported on the
vehicle by an end which faces away from the bearing.
Inventors: |
Mevissen; Peter (Weil der
Stadt, DE), Wohler; Hans-Jurgen (Stuttgart,
DE) |
Assignee: |
Dr. Ing. h.c.F. Porsche AG
(DE)
|
Family
ID: |
6450131 |
Appl.
No.: |
08/005,262 |
Filed: |
January 19, 1993 |
Foreign Application Priority Data
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Jan 24, 1992 [DE] |
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4201837 |
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Current U.S.
Class: |
267/221; 267/179;
267/34 |
Current CPC
Class: |
B60G
15/063 (20130101); B60G 21/0551 (20130101); B60G
2204/1224 (20130101); B60G 2204/43 (20130101); B60G
2204/4304 (20130101); B60G 2204/4305 (20130101) |
Current International
Class: |
B60G
15/06 (20060101); B60G 15/00 (20060101); B60G
21/055 (20060101); B60G 21/00 (20060101); B60G
015/07 (); B60G 021/055 () |
Field of
Search: |
;267/220,221-223,179,34,286,183,190,191 ;188/322.19
;280/689,697,698,700 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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0279135 |
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Aug 1988 |
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EP |
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0312711 |
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Apr 1989 |
|
EP |
|
0370217 |
|
May 1990 |
|
EP |
|
79229304 |
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Mar 1981 |
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DE |
|
3514360 |
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Oct 1986 |
|
DE |
|
3701265 |
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Jul 1988 |
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DE |
|
2472487 |
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Jul 1981 |
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FR |
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3145118 |
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Jun 1988 |
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JP |
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0570183 |
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Jun 1945 |
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GB |
|
Other References
Reimpell, J. "Fahrwerktechnik:Grundlagen", 1988, Vogel, Wurzburg,
Germany..
|
Primary Examiner: Oberleitner; Robert J.
Assistant Examiner: Ballato; Josie A.
Claims
What is claimed is:
1. A vibration damper for a wheel of a motor vehicle,
comprising:
a coil spring; and
a bearing unit for a suspension part of a stabilizer which is held
on a spring strut, wherein the bearing unit comprises a holding
element which has a sleeve part that extends around a cylinder of
the spring strut and is connected with the cylinder, the holding
element also having a projecting console constructed in one piece
with the sleeve part and providing a bearing for the suspension
part, and a face constructed in one piece with the sleeve part and
the console, the face forming a spring plate for the coil spring
which is coaxial with respect to the spring strut, the coil spring
being supported on the vehicle at an end facing away from the
bearing, wherein the face of the spring plate includes a limit stop
for a last winding of the coil spring.
2. A vibration damper according to claim 1, wherein the sleeve part
encloses the spring strut, the console branching away from the
sleeve part and in which an end of the suspension part is fixed in
the bearing unit.
3. A vibration damper according to claim 1, wherein the sleeve part
has an axial recess and is formed by two spaced sleeve rings which
are connected to the console.
4. A vibration damper according to claim 3, wherein the sleeve
rings are each connected by a welding to the cylinder of the spring
strut.
Description
BACKGROUND AND SUMMARY OF THE INVENTION
The present invention relates to a vibration damper for a wheel of
a motor vehicle that has a bearing unit for a suspension part of a
stabilizer which is held on the spring strut.
German Patent Document DE 37 01 265 C2 shows a vibration damper in
which a suspension part of a stabilizer is pivotally connected to
the spring strut by way of a connected console. A spring element
arranged above the console is supported with its lower end in the
direction of the strut by means of a spring plate fastened
separately to the cylinder of the spring strut, the end which faces
away being held on the vehicle by way of an elastic bearing.
An object of the invention is to provide a vibration damper by
which a constructionally simplified bearing for the suspension part
and the coil spring is ensured.
This and other objects are achieved by the present invention which
provides a vibration damper for a wheel of a motor vehicle, the
vibration damper comprising a coil spring and a bearing unit for a
suspension part of a stabilizer which is held on a spring strut.
The bearing unit comprises a holding element which extends around
the cylinder of the spring strut and is connected with the
cylinder. The holding element has a projecting console with a
bearing for the suspension part and a face forming a spring plate
for the coil spring which is coaxial with respect to the spring
struts. The coil springs are supported on the vehicle at an end
facing away from the bearing.
The principal advantages achieved by means of the invention are
that the bearing for the suspension part and for the coil spring on
the spring strut may be combined by means of one component. As a
result, a component can be saved in comparison to the state of the
art and a separate fastening is not required for the now no longer
existing spring plate. This leads to a reduction in weight.
The bearing unit on the spring strut has a holding element which
reaches around the spring strut and comprises a sleeve part with a
molded-on console for a bearing of the suspension part. A spring
plate for the coil spring is constructed on the top side of the
sleeve part.
By means of this arrangement of the integrated spring plate, the
spring cannot slide off, as in the state of the art, in the case of
a breakage of the spring.
In the supporting surface formed by the spring plate, a limit stop
for the end of the last winding of the coil spring is provided
which consists of a tongue pressed out of the material of the
supporting surface.
In a first embodiment, the sleeve part includes two spaced sleeve
rings which have an axial recess between one another. Both sleeve
rings are connected with the console in such a manner that one
component is created with respect to stability. For the fixing, the
rings are welded to the cylinder.
According to another embodiment of the invention, it is a
disadvantage in the case of a level-controlled spring strut to
connect the holding element with the cylinder of the spring strut
by means of welding. The holding element will then consist of a
pot-shaped component which is slid onto the cylinder of the spring
strut and is supported by means of its bottom on the face side of
the cylinder.
On the edge of this pot-shaped holding element, a flange is
provided which is constructed as a spring plate. On one side, the
flange is provided with a console for the bearing of the suspension
part. The connecting of the pot-shaped element with the cylinder of
the spring strut may take place by gluing, pressing or a similar
method.
For the level compensation, the damper is connected with a spring
accumulator which can be acted upon by pressure by way of a
pump.
Other objects, advantages and novel features of the present
invention will become apparent from the following detailed
description of the invention when considered in conjunction with
the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a view of a vibration damper constructed in accordance
with an embodiment of the present invention with a bearing unit for
the suspension part and a coil spring.
FIG. 2 is a view of the bearing unit in the direction of the arrow
X of FIG. 1.
FIG. 3 is a frontal view of the bearing unit.
FIG. 4 is a top view of the bearing unit.
FIG. 5 is a sectional view of a stop of the line V--V of FIG.
4.
FIG. 6 is a view of another embodiment of a bearing unit.
DETAILED DESCRIPTION OF THE DRAWINGS
A vibration damper 1 comprises a spring strut 2 as well as a coil
spring 3. The spring strut 2 may, for example, by means of its
lower end 4, be supported on a suspension link or on a wheel
carrier (not shown), and by means of its upper end 5 may be
supported on the vehicle body. With its lower end or with the last
winding 6, the coil spring 3 is supported on a bearing unit 7, 7a,
and with its upper end 8, which faces away, it is supported on the
vehicle body. A suspension part 9 of a stabilizer 10 is connected
with the bearing unit 7, 7a.
The bearing unit 7 comprises a holding element 22 which reaches
around the cylinder 11 of the spring strut 2. This holding element
22 has a sleeve part 12 which is followed by a molded-on console 13
which projects away from the cylinder 11 and, on the end side, has
a bearing 14 with a fastening 15 for an end of the suspension part
9.
A flat face 16 (FIGS. 2 and 3) formed by the sleeve part 12 and the
console 13 forms the spring plate F for the coil spring 3 which is
supported on it by means of its last winding 6. In the area 16, a
limit stop 17 is provided which holds the free end 18 of the last
winding 6 in a defined position.
The sleeve part 12 comprises sleeve rings 20 and 21 which are
spaced by means of an axial recess 19 and, with respect to
stability, are connected to the console 13. These sleeve rings 20
and 21 are fixedly connected with the cylinder 11 of the spring
strut 2 by means of a welding 26.
According to another embodiment of FIG. 6 , the bearing unit 7a has
a pot-shaped holding element 23 which is arranged on the cylinder
11 in a slid-over manner and is supported by way of its bottom 24
on the face side of the cylinder 11. On the edge of the pot-shaped
holding element, a flange is constructed which is used as a spring
plate F for the spring 3. On the flange 25, a console 13a is
arranged on one side and receives the bearing 14 for the suspension
part 9.
Although the invention has been described and illustrated in
detail, it is to be clearly understood that the same is by way of
illustration and example, and is not to be taken by way of
limitation. The spirit and scope of the present invention are to be
limited only by the terms of the appended claims.
* * * * *